OpenRoads ss4 - Contour labels do not appear exactly on thematic or smooth display

I try to make a thematic map using PowerCivil 08.11.09.845. Contour labels are half on terrain when display style of triangulation is set to thematic:height or smooth. I tried the DTM on 2D and 3D models, also I printed it to PDF but labels were still half. I tried to fix it with priority setting, it didn't work because all labels are depend on the terrain. Is there any way to fix this?

Thanks